1680076157265 has 48 divisors (see below), whose sum is σ = 3178262520576. Its totient is φ = 814225651200.

The previous prime is 1680076157237. The next prime is 1680076157317. The reversal of 1680076157265 is 5627516700861.

It is a happy number.

1680076157265 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 0 + 7 + 6 + 1 + 572 + 65 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1680076157265 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 390025 + ... + 1874105.

It is an arithmetic number, because the mean of its divisors is an integer number (66213802512).

Almost surely, 2^{1680076157265} is an apocalyptic number.

1680076157265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1680076157265 is a deficient number, since it is larger than the sum of its proper divisors (1498186363311).

1680076157265 is a wasteful number, since it uses less digits than its factorization.

1680076157265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486390 (or 1486387 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 1680076157265 in words is "one trillion, six hundred eighty billion, seventy-six million, one hundred fifty-seven thousand, two hundred sixty-five".